Re: TMPFS, is it available on FreeBSD 6 or 7?

2007-08-01 Thread Christopher Hilton

Sten Daniel Soersdal wrote:

Is TMPFS available on FreeBSD 6 or 7?
Or do i have to settle for mfs?

[venting frustration]
The reason i ask is i need something very flexible when it comes to 
memory usage as a poor-mans shared-memory feature for a closed source 
data conversion app, used only occasionally but with *alot* of data 
passing through. By alot i mean it took our quad core xeon 3 ghz with 4 
gbyte memory and 4 SAS drives in 1+0 RAID, about a day and a half to 
process (on disk).
Simple tests (by others) using netbsd on a single cpu 3 ghz and tmpfs, 
it took roughly 70 minutes. Most of which was spent loading and 
unloading the data over the network.
I'd really like that memory back after use for other things as this 
server is also serving databases with files etc.





I love FreeBSD enough to have run my personal webserver on 
FreeBSD-Sparc64 but I don't understand here. If NetBSD does the work in 
70 minutes why not do it on NetBSD?


-- Chris


--
  __o  "All I was doing was trying to get home from work."
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Christopher Sean Hilton
pgp key: D0957A2D/f5 30 0a e1 55 76 9b 1f 47 0b 07 e9 75 0e 14
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Re: TMPFS, is it available on FreeBSD 6 or 7?

2007-07-31 Thread Craig Boston
On Tue, Jul 31, 2007 at 02:42:04PM -0400, Sten Daniel Soersdal wrote:
> Is TMPFS available on FreeBSD 6 or 7?
> Or do i have to settle for mfs?

tmpfs is not available in 6, however it has recently been added to
-current (7) and will be part of the 7.0 release.  If you desperately
need it now, you'll have to partake of the adventure that is running
-current.  If you can wait a while, I'd recommend waiting for the
release, especially if this is a production server.

mfs sounds like it would definitely not work very well for your use
case.  Have you tried playing with filesystem options such as mounting a
disk-based /tmp async (with softupdates DISABLED) to see if it helps
any?  Won't be as fast as tmpfs, but with some tuning you might be able
to get it to acceptable levels in the interim.

Craig
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